Ejector



(Model.)

' J. M. MARTY.

EJEGTOR. No. 380,907. Patented Apr. l0, 1888.

iff fmym. W @JM UNITED STATES PATENT OFFICE.

JOHN M. MARTY, OF CLEVELAND, OHIO.

EJ ECTOR.

SPECIFICATION'forming part of Letters Patent No. 380.907. dated April 10, 1888.

Application filed June 28, 1887. Serial No. 242,748. (Model.)

To all whom it may concern:

Be it known that I, JOHN M. MARTY, a citizen of theUnited States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Steam-Ejectors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and iigures of reference marked thereon,which form a part of this specification.

My invention has relation to ejectors; and it consists in the novel construction and arrangement of its parts.

Inthc accompanying drawings,Figure l is a perspective View of my ejector. Fig. 3 is a sectional view of Fig. 1, cut through on the line w and is shown as looking on it in the direction that the arrow dies. Fig. 2 is a perpendicular longitudinal sectional view of Fig. l.

My invention is describedas follows: It consists of the bodyA, having the usual steam-inlet, a, suction or water inlet c', and discharge ai, valve c3, cap a4, strap a, and set-screw as. Two points in ejectors must be considered in order to make them efficient or economical: first, as high a lift as possible; second, an enlargement of the water-tubes c c c c c as soon as practicable, and channels between suctionpipe and points within the axis of the steamtubes farther away than where the water comes in contact with the steam, as the steam does not all condense within the area of one-half inch, or over one inch or more, and as the high velocity with which steam and water rushes through the water-tubes enables it to take up still more water. The second object has been accomplished often by running channels directly from the suction-chamber to intersections of the water-pipe, and the water pipes or tubes being made tapering-"that is, wider toward the discharge end; but such constructions invariably are detrimental to the lifting capacity of an ejector, as there is a returning current formed from the last channels back again toward the nozzle of the steamtube. Therefore I insert a valve, as, between the first few tubes or openings, which are small. rIhe channel B going to the larger nozzle, the valve as is down, as well by its own weight as by the suction caused by the steam rushing to the smallest water-tubes. As soon as the water appears,it comes with such a rush as to throw the said valve up, and about two'- thirds of the water passes by the first tubes into the chamber O O on top, and thence through channel B to the larger water or discharge tubes or openings. The valve ai' in said ejector may be made as shown in the accompanying cuts and made to work like a check-valve-that is, by itself--or it may be connected by a suitable stem and handle, to be worked from the outside through the cap whenever the machine is so large that the valve on it istoo heavy to work easy of its own accord ortoo heavy to be lifted by the inertia of the water. The cap a is made to fit on the top of the chamber C C and has in its barrel cl an opening, d', for the stem of the valve to work up and down in. Said cap is easily removable and is held in place by the U-shaped strap a5, the lower ends, e,of which are turned in and catch under the lugsf on the outside of the chamber C O, and the set-screw a, which passes through the upper part of said strap and is screwed down on the upper end of the barrel d of said cap.

Having described my invention,what I claim as new, and desire to secure by Letters Patent, 1s

l. The above ejector, as described, having the steam-inlet and water-inlet and the gradually-widening discharge-openings 0,chamber C C, channel B, and valve c3, set between the steam-nozzle and said gradually-widening discharge-openings o, substantially as shown and described, and for the purposes set forth.

2. In an ejector as above described, the valve ai, set in chamber C C and adapted to be operated by its own weight and the inertia of the water, -substantially as shown and described, and for the purposes set forth.

3. In an ejector as above described, in combination with said ejector,the cap at, fitting on and covering the upper end of the chamber C C, strap a5, its lower` ends, e, catching under` In testimony whereof I afx my signature in the lugs f, sebsorew a'working through the presence of two witnesses. upper pari: o f Said strap and screwing down on the upper end of the barrel d of said cap, JOHN M. MARTY.

and valve as, its stem fitting in and working up and down in opening d in the barrel d of Vitnesses: saidcap,substantia1lyas shown and described, GEORGE C. WING, and fof the purposes set forth. KATIE PARKHURST. 

